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Finding the Fourth Proportional to 1,300,885.76, 1,951,317.68 and 1,016,815.26

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Solution

The fourth proportional to 1,300,885.76, 1,951,317.68 and 1,016,815.26 is: 1,525,214.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,300,885.76 : 1,951,317.68 = 1,016,815.26 : x
  2. Step 2: Convert to fraction form
    1,300,885.76/1,951,317.68 = 1,016,815.26/x
  3. Step 3: Cross multiply
    1,300,885.76x = 1,951,317.68 × 1,016,815.26
  4. Step 4: Simplify right side
    1,300,885.76x = 1,984,129,594,131.80
  5. Step 5: Solve for x
    x = 1,984,129,594,131.80/1,300,885.76
  6. Step 6: Final answer
    x = 1,525,214.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.